Decoding how they use smartphones

By Lauren Johnson on Mar. 3, 2015 - 8:45 PM EST

Specs
Who Catherine Borda
Current gig Director of youth marketing at AT&T
Previous gig Brand manager at Georgia-Pacific
Twitter: @CatherineBorda
Age 36
You're responsible for spearheading AT&T's millennial efforts. What have you learned that works with this…